Accuracy Assessment of Duhok City Land use Official Maps

In this study, the geometric accuracy of four different maps for three sectors of Duhok city was assessed. The maps were produced in different periods and different techniques. One set of maps was paper plotted maps, which had to be geo-referenced. The other three maps were digitally plotted with re...

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Main Authors: Raad Awad Kattan, Farsat H. Abdulrahman
Format: Article
Language:English
Published: Erbil Polytechnic University 2019-12-01
Series:Polytechnic
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Online Access: https://polytechnic-journal.epu.edu.iq/home/vol9/iss2/29
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author Raad Awad Kattan
Farsat H. Abdulrahman
author_facet Raad Awad Kattan
Farsat H. Abdulrahman
author_sort Raad Awad Kattan
collection DOAJ
description In this study, the geometric accuracy of four different maps for three sectors of Duhok city was assessed. The maps were produced in different periods and different techniques. One set of maps was paper plotted maps, which had to be geo-referenced. The other three maps were digitally plotted with reference to the global coordinate system UTM/WGS-84/Zone 38 N projection. A total of 51 points were identified on one reference map, which is the master plan of Duhok city prepared by the general directorate of urban planning/Kurdistan region/Iraq with the collaboration of the German company Ingenieurburo Vossing Company. The reference map, which is the master plan of Duhok governorate, is an official map that is certified and checked by the ministry of planning of the Kurdistan region to have a positional accuracy of ±1.5 cm. These points were searched for and identified on the other three maps. Discrepancies in Easting and Northings of these points were calculated, which resulted in the mean discrepancy of 2.29 m with a maximum value of 8.5 m in one event. The maximum standard deviation in dE and dN was 3.8 m. These values are reasonably accepted, considering that the maps were prepared using different techniques and a variable accuracy standard.
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spelling doaj-art-02e17465f7be411d8b0871144f9ff2472024-11-24T08:02:20ZengErbil Polytechnic UniversityPolytechnic2707-77992019-12-0192178185https://doi.org/10.25156/ptj.v9n2y2019.pp178-185Accuracy Assessment of Duhok City Land use Official MapsRaad Awad Kattan0Farsat H. Abdulrahman1Department of Surveying Engineering, College of Engineering, University of Duhok, Kurdistan Region, IraqDepartment of Surveying Engineering, College of Engineering, University of Duhok, Kurdistan Region, IraqIn this study, the geometric accuracy of four different maps for three sectors of Duhok city was assessed. The maps were produced in different periods and different techniques. One set of maps was paper plotted maps, which had to be geo-referenced. The other three maps were digitally plotted with reference to the global coordinate system UTM/WGS-84/Zone 38 N projection. A total of 51 points were identified on one reference map, which is the master plan of Duhok city prepared by the general directorate of urban planning/Kurdistan region/Iraq with the collaboration of the German company Ingenieurburo Vossing Company. The reference map, which is the master plan of Duhok governorate, is an official map that is certified and checked by the ministry of planning of the Kurdistan region to have a positional accuracy of ±1.5 cm. These points were searched for and identified on the other three maps. Discrepancies in Easting and Northings of these points were calculated, which resulted in the mean discrepancy of 2.29 m with a maximum value of 8.5 m in one event. The maximum standard deviation in dE and dN was 3.8 m. These values are reasonably accepted, considering that the maps were prepared using different techniques and a variable accuracy standard. https://polytechnic-journal.epu.edu.iq/home/vol9/iss2/29assess geometric accuracy;discrepancy;geo-referencing;land use maps
spellingShingle Raad Awad Kattan
Farsat H. Abdulrahman
Accuracy Assessment of Duhok City Land use Official Maps
Polytechnic
assess geometric accuracy;
discrepancy;
geo-referencing;
land use maps
title Accuracy Assessment of Duhok City Land use Official Maps
title_full Accuracy Assessment of Duhok City Land use Official Maps
title_fullStr Accuracy Assessment of Duhok City Land use Official Maps
title_full_unstemmed Accuracy Assessment of Duhok City Land use Official Maps
title_short Accuracy Assessment of Duhok City Land use Official Maps
title_sort accuracy assessment of duhok city land use official maps
topic assess geometric accuracy;
discrepancy;
geo-referencing;
land use maps
url https://polytechnic-journal.epu.edu.iq/home/vol9/iss2/29
work_keys_str_mv AT raadawadkattan accuracyassessmentofduhokcitylanduseofficialmaps
AT farsathabdulrahman accuracyassessmentofduhokcitylanduseofficialmaps